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Questions tagged [complex-event-processing]

Complex event processing (CEP) consists of processing many events happening across all the layers of an organization, identifying the most meaningful events within the event cloud, analyzing their impact, and taking subsequent action in real time.

Complex event processing refers to process states, the changes of state exceeding a defined threshold of level, time, or value increment or just of a count as the event. It requires the respective event monitoring, event reporting, event recording and event filtering. An event may be observed as a change of state with any physical or logical or otherwise discriminated condition of and in a technical or economical system, each state information with an attached time stamp defining the order of occurrence and a topology mark defining the location of occurrence.

664 questions
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create new event in output adapter streaminsight

I have the following problem in StreamInsight. I have a query where new tasks from an order came in and trigger an output adapter to make an prediction. The outputadapter writes the predicted task cycle time to a table (in Windows Azure). The…
Carlo
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Does WSO2 CEP with Esper engine support JMS Queues?

I want to send events to WSO2 CEP through ActiveMQ 'Queue'. Also i want to receive events in ActiveMQ 'Queue' processed by WSO2 CEP . I am wondering whether this is possible with Esper Engine ?
madhurika
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esper: select from where statement event when no matches in where

I am trying to use a select statement where the values of a field depend on values from 2 windows. Also a where statement is used at the end to filter out event from 1 wiondow. Eg. Select coalesce(B.field1,0) + A.field1 as…
puneet
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Can WSO2 CEP 2.0.1 receive events from JMS queue?

Like in jms-twitter example WSO2 CEP is receiving events from JMS Topic, I want to receive the events from JMS Queue . Is it possible?
madhurika
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About Siddhi pattern find

Does siddhi (http://siddhi-cep.blogspot.com/) / WSO2 have the functionality to work on query similar to 1) 5 error followed by success 2) 5 error followed by 5 fatal followed by 1 success time window can by assumed to be present could anyone…
sabbir
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WSO2 CEP Management Console

I have installed WSO2 CEP on Linux. But when I tried to open the management console with the https:///carbon/, it says "The website is not available." I have the WSO2 CEP running (and it said WSO2 Carbon started in 19 sec). Is this because I didn't…
user2236712
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How do I trace CEP processing in WSO2 CEP?

I am attempting to emulate the Build Analyzer example with my own bucket and input stream. I believe I have set up everything correctly, but when I run test data, I do not get any results. The entire log output is [2013-03-29 08:57:16,988] INFO…
doug
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wso2 CEP error in event list

The post seems long but is is only because of data (samples and errors). I am trying to make a bucket mocking the buildFailed sample in cep 2.1.0. (This sample works). I have created my own stream and my own sample data. Yet it seams that the input…
cyril R
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WSO2 CEP siddhi Filter issue

I am trying to use the siddhi query langage but it seems I am misusing it. I have some events with the following streamdef : { 'name':'eu.ima.stat.events', 'version':'1.1.0', 'nickName': 'Flux event Information', 'description': 'Details of…
cyril R
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WSO2ESB- The 'name' attribute is required for a Proxy service definition

I have a problem in deploying this sample: "Complex Event Processing and Business Rule Management With SOA" (Link: http://wso2.org/library/articles/2011/07/complex-event-processing-business-rule-management-soa) I did all the details, but when I copy…
Saeed
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Drools Temporal Rules

I'm newbie to the Drools. Here i'm trying to generate a notification if a process is running for longer than some time - let's say 5 minutes. To achieve the above I'm writing the following code in DRL file. But it doesn't seem to be working. drl…
user2128234
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wso2 cep sequence detect missing event

I would like to define a query in cep/siddhi that detects a missing event in a sequence. I have 4 events that must occur within 5 minutes. (p1->p2->p3->p4 within 3000) How can I write the condition to insert my alert event when one of the p2,P3 or…
cyril R
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How to pipelined the Map-input-stream as events directly to WSO2-CEP without selecting or using the "Input mapping type"?

I am using WSO2-CEP with Esper(as runtime),Esper processed queries on Map as siddhi on tuples."Input Mapping type" basically declares the type of input conversion required for e.g XML-Mapping: XML to Map or Tuple.I have run an sample by converting…
sumit chauhan
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wso2 new broker type

I have implemented a new Broker by extending the BrokerType and BrokerTypeFactory. I wanted to deploy this new Broker to WSO2 CEP. I created a broker.xml and placed it in repository/conf directory …
Rajiv Patil
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Receiving message over JMS - WSO2 CEP

I have following questions - 1. Does WSO2 CEP can listen to JMS queue also ? If yes, please share any article. 2. In case upstream application publishes message to topic and we have distributed (2 node CEP setup) CEP set up than shouldn't both node…
Madhup Srivastava
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